Joeys first 14 quiz grades in a marking period were as follows: a. Calculate the mean. Show your work. b. Suppose Joey has an unexcused absence for the 15th quiz, and he receives a score of 0. Recalculate the mean. What property of the mean does this illustrate? 86 84 91 75 78 80 74 87 76 96 82 90
Chapter 1, Exercises #87
Joey’s first 14 quiz grades in a marking period were as follows:
a. Calculate the mean. Show your work.
b. Suppose Joey has an unexcused absence for the 15th quiz, and he receives a score of 0. Recalculate the mean. What property of the mean does this illustrate?
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Answer
a) Mean = Sum of values / No. of values = (86 + 84 + 91 + 75 + 78 + 80 +74 + 87 + 76 + 96 +…View the full answer
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